SHELLY Pro EM-50 Single Phase Energy Meter User Guide

SHELLY Pro EM-50 Single Phase Energy Meter

Product Information

Specifications

• Product Name: Shelly Pro EM-50 Single-Phase Energy Meter
• Usage: Measures energy consumption in single-phase power grids

Product Usage Instructions

Facility

• BAIL! Danger of electrocution. Mounting/installation of the Device to the power grid has to be performed with caution, by a qualified electrician.
• BAIL! Danger of electrocution. Every change in the connections has to be done after ensuring there is no voltage present at the Device terminals.
• BAIL! Use the Device only with a power grid and appliances that comply with all applicable regulations. A short circuit in the power grid or any appliance connected to the Device may damage it.
• BAIL! Do not connect the Device to appliances exceeding the given max load!
• RECOMMENDATION: Connect the Device using solid single-core cables or stranded cables with ferrules. The cables should have insulation with increased heat resistance.

Device Status

The Device has LED lights to indicate its status:

• Blue light: AP mode
• Red light: STA mode, not connected to a Wi-Fi network
• Yellow light: STA mode, connected to a Wi-Fi network
• Greenlight: STA mode, connected to a Wi-Fi network and the Shelly Cloud

LAN Cable Connection

• BAIL! Plug in or unplug the LAN cable only when the Device is powered off! The LAN cable must not be metallic in the parts touched by the user to plug it in or unplug it.

Device Placement

• BAIL! Do not install the Device where it can get wet.

Frequently Asked Questions (FAQ)

Q: Can I install the Device myself?

• A: No, the mounting/installation of the Device to the power grid must be performed by a qualified electrician to avoid the danger of electrocution.

Q: What types of cables should I use to connect the Device?

• A: It is recommended to use solid single-core cables or stranded cables with ferrules. The cables should have insulation with increased heat resistance.

Q: How can I check the status of the Device?

• A: The Device has LED lights that indicate its status. Refer to the user manual for more information on the different LED light colors and their meanings.

SINGLE-PHASE ENERGY METER

Read before use

• This document contains important technical and safety information about the device, its safe use, and installation.
• CAUTION! Before beginning the installation, please read carefully and entirely
• this guide and any other documents accompanying the device. Failure to follow the installation procedures could lead to malfunction, danger to your health and life, violation of law, or refusal of legal and/or commercial guarantee (if any). Shelly Eu-rope Ltd is not responsible for any loss or damage in case of incorrect installation or improper operation of this device due to failure to follow the user and safety instructions in this guide.

Product Introduction

• Shelly® is a line of innovative microprocessor-managed devices, which allow remote control of electric circuits through a mobile phone, tablet, PC, or home automation system. Shelly® devices can work standalone in a local Wi-Fi network or they can also be operated through cloud home automation services. Shelly Cloud is a service that can be accessed using either an Android or iOS mobile application or with any internet browser at https://control.shelly.cloud/.
• Shelly® devices can be accessed, controlled, and monitored remotely from any place where the user has internet connectivity, as long as the devices are connected to a Wi-Fi router and the Internet. Shelly® devices have an Embedded Web Interface accessible at http://192.168.33.1 when connected directly to the device access point, or at the device IP address on the local Wi-Fi network. The embedded Web Interface can be used to monitor and control the device, as well as adjust its settings.
• Shelly® devices can communicate directly with other Wi-Fi devices through HTTP protocol. An API is provided by Shelly Europe Ltd. For more information, please visit https://shelly-api-docs.shelly.cloud/#shelly-family-overview.
• Shelly® devices are delivered with factory-installed firmware. If firmware updates are necessary to keep the devices in conformity, including security updates, Shelly Europe Ltd will provide the updates free of charge through the device Embedded Web
• Interface or the Shelly mobile application, where the information about the current firmware version is available.
• The choice to install or not the device firmware updates is the user’s sole responsibility.
• Shelly Europe Ltd shall not be liable for any lack of conformity of the device caused by the failure of the user to install the provided updates on time.

Shelly® Pro Series

• Shelly® Pro series is a line of devices suitable for homes, offices, retail stores, manufacturing facilities, and other buildings. Shelly® Pro devices are DIN mount-able inside the breaker box, and highly suitable for new building construction. All Shelly® Pro devices can be controlled and monitored through Wi-Fi and LAN connections. Bluetooth connection can be used for the inclusion process.
• Shelly Pro EM-50 (The Device) is a DIN rail mountable single-phase, dual-channel energy meter with a dry contacts relay for contactor control. The Device reports accumulated energy as well as voltage, current, and power factor data in real-time.
• It stores data in non-volatile memory for later retrieval at least 60 days of 1 min data resolution.

Schematic

Legend Device terminals:

• O: Relay output
• I: Relay input
• IA: Current transformer A (CTA) input
• IB: Current transformer B (CTB) input
• N: Neutral terminal
• L: Live (100-260 VAC) terminal Cables:
• N: Neutral cable
• L: Live (100-260 VAC) cable

Installation Instructions

• CAUTION! Danger of electrocution. Mounting/installation of the Device to the power grid has to be performed with caution, by a qualified electrician.
• CAUTION! Danger of electrocution. Every change in the connections has to be done after ensuring there is no voltage present at the Device terminals.
• CAUTION! Use the Device only with a power grid and appliances that comply with all applicable regulations. A short circuit in the power grid or any appliance connected to the Device may damage it.
• CAUTION! Do not connect the Device to appliances exceeding the given max load!
• CAUTION! Connect the Device only in the way shown in these instructions. Any other method could cause damage and/or injury.
• CAUTION! Do not install the Device where it can get wet.
• CAUTION! Plug in or unplug the LAN cable only when the Device is powered off! The LAN cable must not be metallic in the parts touched by the user to plug it in or unplug it.
• RECOMMENDATION: Connect the Device using solid single-core cables or stranded cables with ferrules. The cables should have insulation with increased heat resistance, not less than PVC T105°C (221°F).
• CAUTION! The Device and the load current circuit have to be secured by a cable protection switch under EN60898-1 (tripping characteristic B or C, max. 2 A rated current, min. 6 kA interrupting rating, energy limiting class 3).
• Before starting the mounting/installation of the Device, check that the breakers are turned off and there is no voltage on their terminals. This can be done with a phase tester or multimeter.
• When you are sure that there is no voltage, you can proceed to connect the cables.
• Following the diagram in Fig. 1 install the current transformer CTA around the cable of a load circuit and CTB around the cable of another load circuit.
• Mount the Device onto the DIN rail.
• Plug the cables of the CTA and CTB into the Device IA and IB input connectors respectively.

References

• Shelly Control
• Welcome to Shelly Technical Documentation | Shelly Technical Documentation
• Shelly Pro EM-50
• Easy Smart Home Automation

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